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    Method of operating a primary optical node and a secondary optical node
    31.
    发明授权
    Method of operating a primary optical node and a secondary optical node 有权
    操作主光节点和次光节点的方法

    公开(公告)号：US09197349B2

    公开(公告)日：2015-11-24

    申请号：US13896839

    申请日：2013-05-17

    Applicant: ADVA Optical Networking SE

    Inventor： Klaus Grobe ,  Markus Roppelt

    IPC: H04J14/00 ,  H04J14/02

    CPC classification number: H04J14/0227 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0272 ,  H04J14/0276 ,  H04J14/0282

    Abstract: The invention relates to a method of operating a primary optical node, particularly an optical line terminal (OLT), for an optical communications system, wherein said OLT is configured to receive at least one upstream optical signal (uos) from at least one secondary optical node, particularly an optical networking unit (ONU), within at least a first wavelength range (wr1), and to transmit at least one downstream optical signal (dos) to said at least one ONU within at least a second wavelength range (wr2), wherein said OLT determines a currently unused wavelength subrange (wsr2) within said first wavelength range (wr1), assigns a specific target wavelength (λt) within said currently unused wavelength subrange (wsr2) to said ONU, signals said target wavelength (λt) to said ONU, receives an upstream signal (us) from said ONU, and provides feedback information to said ONU.

    Abstract translation: 本发明涉及一种操作用于光通信系统的主光节点，特别是光线路终端（OLT）的方法，其中所述OLT被配置为从至少一个辅助光接收器接收至少一个上行光信号（uos） 在至少第一波长范围（wr1）内，尤其是光网络单元（ONU）的节点，尤其是光网络单元（ONU），并且在至少第二波长范围（wr2）内向至少一个ONU发送至少一个下行光信号（dos） ，其中所述OLT确定所述第一波长范围（wr1）内的当前未使用的波长子范围（wsr2），将所述当前未使用的波长子范围（wsr2）内的特定目标波长（λt）分配给所述ONU，信号表示所述目标波长（λt） 向所述ONU接收来自所述ONU的上行信号（us），并向所述ONU提供反馈信息。

    Method and Tuning Device for Tuning a Tunable Optical Transmitter to a Predetermined Target Wavelength
    32.
    发明申请
    Method and Tuning Device for Tuning a Tunable Optical Transmitter to a Predetermined Target Wavelength 有权
    用于将可调谐光发射机调谐到预定目标波长的方法和调谐装置

    公开(公告)号：US20150318930A1

    公开(公告)日：2015-11-05

    申请号：US14704046

    申请日：2015-05-05

    Applicant: ADVA Optical Networking SE

    Inventor： Klaus Grobe ,  Michael Eiselt

    IPC: H04B10/572 ,  H04J14/02 ,  H04B17/11

    CPC classification number: H04B10/506 ,  H04B10/572 ,  H04B17/11 ,  H04J14/02

    Abstract: A method for tuning a tunable optical transmitter to a target wavelength includes applying at least one tuning signal to the tunable optical transmitter to control the tunable optical transmitter to create an optical calibration signal according to nominal tuning information for the tunable optical transmitter. The optical calibration signal has a wavelength lying within a secure wavelength range, and the nominal tuning information is based on a nominal wavelength dependency for the tunable optical transmitter. The method also includes measuring a deviation between an actual wavelength dependency of the tunable optical transmitter and the nominal wavelength dependency, and determining calibration information based on that deviation. The calibration information is applied to determine a corrected nominal wavelength dependency from which target tuning information is determined. The tunable optical transmitter is controlled to create an optical channel signal according to the target tuning information.

    Abstract translation: 用于将可调光发射机调谐到目标波长的方法包括将至少一个调谐信号施加到可调谐光发射机，以根据可调谐光发射机的标称调谐信息来控制可调光发射机产生光学校准信号。 光学校准信号具有位于安全波长范围内的波长，标称调谐信息基于可调光发射机的标称波长依赖性。 该方法还包括测量可调光发射机的实际波长依赖性与标称波长依赖性之间的偏差，以及基于该偏差来确定校准信息。 应用校准信息来确定确定目标调谐信息的校正的标称波长依赖性。 根据目标调谐信息，控制可调光发射机产生光通道信号。

    Optical fiber transmission system
    33.
    发明授权
    Optical fiber transmission system 有权
    光纤传输系统

    公开(公告)号：US08989592B2

    公开(公告)日：2015-03-24

    申请号：US13726080

    申请日：2012-12-22

    Applicant: ADVA Optical Networking SE

    Inventor： Roy Bowcutt ,  Sorin Tibuleac

    IPC: H04B10/00 ,  H04J3/04 ,  H04J14/02 ,  H04B10/077

    CPC classification number: H04J14/0201 ,  H04B10/077

    Abstract: An optical fiber transmission system adapted to provide a remote passive identification of components deployed in said transmission system, wherein each component comprises an associated passive optical identification unit adapted to provide identification of a component type of the respective component on the basis of a received optical identification signature carried in an optical identification signal to said component.

    Abstract translation: 一种适于提供部署在所述传输系统中的组件的远程被动识别的光纤传输系统，其中每个部件包括相关联的无源光学识别单元，其适于基于所接收的光学标识来提供相应部件的部件类型的识别 在所述组件的光学识别信号中携带的签名。

    Method for Tuning a Tunable Optical Transmitter in an Optical WDM Transmission System and Corresponding Optical WDM Transmission System
    35.
    发明申请
    Method for Tuning a Tunable Optical Transmitter in an Optical WDM Transmission System and Corresponding Optical WDM Transmission System 有权

    公开(公告)号：US20140247840A1

    公开(公告)日：2014-09-04

    申请号：US14190887

    申请日：2014-02-26

    Applicant: ADVA Optical Networking SE

    Inventor： Michael Eiselt ,  Jörg-Peter Elbers

    IPC: H04J14/02 ,  H04B10/2575

    CPC classification number: H04J14/0227 ,  H04B10/0779 ,  H04B10/2575 ,  H04B2210/074 ,  H04J14/0258 ,  H04J14/0276 ,  H04J14/0279

    Abstract: The invention relates to an optical WDM transmission system including a plurality of first optical transceivers (11) at a first end (7) of an optical WDM transmission link (5, 5′), each of the first optical transceivers (11) including a tunable optical transmitter (17) being adapted to create a first digital optical channel signal (S1ch,i) within the bandwidths of a set of first optical channels of the optical WDM transmission system (1, 1′) according to a tuning control information, multiplexing means (13) for multiplexing the first digital optical channel signals (S1ch,i) into a first optical WDM signal (S1WDM), which is supplied to the first end (7) of the optical WDM transmission link (5, 5′), a plurality of second optical transceivers at a second end (9) of the optical WDM transmission link, each of the second optical transceivers including an optical transmitter being adapted to create a second digital optical channel signal (S2ch,i) within the bandwidth of a predetermined optical channel of a second set of optical channels of the optical WDM transmission system (1, 1′), multiplexing means for multiplexing the second digital optical channel signals into a second optical WDM signal (S2WDM), which is supplied to the second end (9) of the optical WDM transmission link (1, 1′), demultiplexing means (15) for demultiplexing the second optical WDM signal (S2WDM) into the second digital optical channel signals (S2ch,i) and providing each of the second digital optical channel signals (S2ch,i) to a dedicated first optical transceiver (11), and a central tuning device (3, 3′) adapted to create the tuning control information for one or more selected or all of the first optical transceivers (11) by tapping off an optical WDM detection signal (SWDM) from the first optical WDM signal (S1WDM), extracting tuning status information from the optical WDM detection signal (Sdet,WDM) and determining tuning control information for at least one of the first transceivers (11), the central tuning device (3, 3′) being further adapted to supply the tuning control information to the at least one first transceiver (11) by modulating the second optical WDM signal (S2WDM) according to the tuning control information applying an amplitude modulation of the second optical WDM signal (S2WDM) using a dedicated WDM tone frequency.

    Meshed protected passive optical access network structure and optical network unit structure therefore
    36.
    发明授权
    Meshed protected passive optical access network structure and optical network unit structure therefore 有权
    网状保护无源光接入网络结构和光网络单元结构

    公开(公告)号：US08824893B2

    公开(公告)日：2014-09-02

    申请号：US13680698

    申请日：2012-11-19

    Applicant: ADVA Optical Networking SE

    Inventor： Henning Hinderthür

    IPC: H04J14/02 ,  H04B10/272 ,  H04J14/08

    CPC classification number: H04B10/272 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0216 ,  H04J14/022 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0284 ,  H04J14/0294 ,  H04J14/086

    Abstract: Provided is an optical network system and optical network unit (ONU) structure enabling a passive optical access network having a meshed structure with at least two central nodes and plurality of ONUs. One embodiment employs a partially or fully meshed structure of optical fibers between customer locations and multiple optical line terminal (OLT) locations creating a passive optical access network. The ONUs can communicate with a neighboring OLT or ONU using a symmetrical or asymmetrical TDM scheme, and convert between the different TDM schemes. For this purpose, the ONU structure includes two transceiver units, one connected to the western network port and the other to the eastern. The ONU can establish communication between either network port and a further ONU or an OLT, with the ONU controller adapted for passing through data, and converting TDM schemes.

    Abstract translation: 提供了一种光网络系统和光网络单元（ONU）结构，其能够实现具有至少两个中心节点和多个ONU的网状结构的无源光接入网络。 一个实施例在客户位置和多个光线路终端（OLT）位置之间采用部分或全部网格化的光纤结构，从而创建无源光接入网络。 ONU可以使用对称或非对称TDM方案与相邻OLT或ONU通信，并在不同的TDM方案之间进行转换。 为此，ONU结构包括两个收发器单元，一个连接到西部网络端口，另一个连接到东部。 ONU可以在网络端口和另一个ONU或OLT之间建立通信，ONU控制器适合通过数据，并转换TDM方案。

    Method for reducing the impact of transient effects in an optical network
    37.
    发明授权
    Method for reducing the impact of transient effects in an optical network 有权

    公开(公告)号：US12155415B2

    公开(公告)日：2024-11-26

    申请号：US17970730

    申请日：2022-10-21

    Applicant: ADVA Optical Networking SE

    Inventor： Lutz Rapp

    IPC: H04B10/2507

    Abstract: Provided is a method for reducing the impact of transient effects in an optical network. The optical network includes at least one span, and an optical signal having a plurality of sub-bands travels through at least one span of the at least one span of the optical network. Each of the at least one span has associated amplifiers and the associated amplifiers are connected to launch optical signals into a remainder of a corresponding optical transmission line. Respectively one of the sub-bands of the optical signal traveling through the span is amplified by one of these associated amplifiers. Each of the associated amplifiers includes at least one control element for controlling gain and tilt of the corresponding amplifier. The method includes the steps of for each span, acquiring an actual value of at least one performance parameter; for each span, respectively computing actual settings for each of the control elements included in the amplifiers associated to the corresponding span based on the actual value of the at least one performance parameter of the corresponding span; and for each span, respectively adjusting the settings of each of the control elements included in the amplifiers associated to the corresponding span based on the computed actual settings for the corresponding control element, in order to reduce the impact of transient effects.

    Method for Monitoring a Pump Laser of at Least One Optical Amplifier in an Optical Transmission Link in Operation
    39.
    发明公开
    Method for Monitoring a Pump Laser of at Least One Optical Amplifier in an Optical Transmission Link in Operation 审中-公开

    公开(公告)号：US20230411924A1

    公开(公告)日：2023-12-21

    申请号：US18211638

    申请日：2023-06-20

    Applicant: ADVA Optical Networking SE

    Inventor： Lutz Rapp

    IPC: H01S3/10

    CPC classification number: H01S3/10015 ,  H01S3/1001

    Abstract: Provided is a method for monitoring a pump laser of at least one optical amplifier in an optical transmission link in operation. The optical output power of the pump laser to be monitored depends on an injection current. The pump laser to be monitored is operated at an operating point defined by a given value of the injection current and a corresponding value of the optical output power. The method includes the steps of shifting the operating point of the pump laser to be monitored to at least one shifted operating point. The shifting is effected in such a way that the gain of the respective optical amplifier essentially reaches its steady state, determining information on the at least one shifted operating point, and using the information on the operating point and the at least one shifted operating point to determine information on the stage of aging of the pump laser to be monitored.

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